Clinical outcome of patients with heart failure and preserved left ventricular function.
BACKGROUND
Patients with heart failure have a poor prognosis. However, it has been presumed that patients with heart failure and preserved left ventricular function (LVF) may have a more benign prognosis.


OBJECTIVE
We evaluated the clinical outcome of patients with heart failure and preserved LVF compared with patients with reduced function and the factors affecting prognosis.


METHODS
We prospectively evaluated 289 consecutive patients hospitalized with a definite clinical diagnosis of heart failure based on typical symptoms and signs. They were divided into 2 subsets based on echocardiographic LVF. Patients were followed clinically for a period of 1 year.


RESULTS
Echocardiography showed that more than one third (36%) of the patients had preserved systolic LVF. These patients were more likely to be older and female and have less ischemic heart disease. The survival at 1 year in this group was poor and not significantly different from patients with reduced LVF (75% vs 71%, respectively). The adjusted survival by Cox regression analysis was not significantly different (P=.25). However, patients with preserved LVF had fewer rehospitalizations for heart failure (25% vs 35%, P<.05). Predictors of mortality in the whole group by multivariate analysis were age, diabetes, chronic renal failure, atrial fibrillation, residence in a nursing home, and serum sodium < or = 135 mEq/L.


CONCLUSIONS
The prognosis of patients with clinical heart failure with or without preserved LVF is poor. Better treatment modalities are needed in both subsets.
Gotsman
Israel
I
Heart Institute, Hadassah University Hospital, Jerusalem, Israel. igotsman@bezeqint.net
Zwas
Donna
D
Planer
David
D
Azaz-Livshits
Tanya
T
Admon
Dan
D
Lotan
Chaim
C
Keren
Andre
A
D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006333:Heart Failure / Q000175:diagnosis / Q000401:mortality* / Q000503:physiopathology; D006801:Humans; D007557:Israel / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D016277:Ventricular Function, Left